noun(pluralchalazaeor-zas)Etymology:New Latin, from Greek, hailstoneDate: circa 17041. either of two spiral bands in the white of a bird's egg that extend from the yolk and attach to opposite ends of the lining membrane — see eggillustration2. the basal part of a plant ovule where the nucellus is fused to the surrounding integument and to which the funiculus is usuallyattached
• chalazaladjective

Chalaza — Cha*la za, n.; pl. E. {Chalazas}, L. {Chalaz[ae]}. [NL., fr. Gr. ? hail, pimple.] 1. (Bot.) The place on an ovule, or seed, where its outer coats cohere with each other and the nucleus. [1913 Webster] 2. (Biol.) A spiral band of thickened… … The Collaborative International Dictionary of English